US3870531A - Optical flint glass with relatively low refractive indices and high dispersion - Google Patents

Optical flint glass with relatively low refractive indices and high dispersion Download PDF

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Publication number
US3870531A
US3870531A US272628A US27262872A US3870531A US 3870531 A US3870531 A US 3870531A US 272628 A US272628 A US 272628A US 27262872 A US27262872 A US 27262872A US 3870531 A US3870531 A US 3870531A
Authority
US
United States
Prior art keywords
weight
glass
flint glass
optical
tio2
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US272628A
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English (en)
Inventor
Walter Jahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schott AG
Original Assignee
Jenaer Glaswerk Schott and Gen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19712137748 external-priority patent/DE2137748C/de
Application filed by Jenaer Glaswerk Schott and Gen filed Critical Jenaer Glaswerk Schott and Gen
Application granted granted Critical
Publication of US3870531A publication Critical patent/US3870531A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/076Glass compositions containing silica with 40% to 90% silica, by weight
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/062Glass compositions containing silica with less than 40% silica by weight
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/062Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07Glass compositions containing silica with less than 40% silica by weight containing lead
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/076Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/102Glass compositions containing silica with 40% to 90% silica, by weight containing lead
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S501/00Compositions: ceramic
    • Y10S501/90Optical glass, e.g. silent on refractive index and/or ABBE number
    • Y10S501/901Optical glass, e.g. silent on refractive index and/or ABBE number having R.I. at least 1.8
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S501/00Compositions: ceramic
    • Y10S501/90Optical glass, e.g. silent on refractive index and/or ABBE number
    • Y10S501/903Optical glass, e.g. silent on refractive index and/or ABBE number having refractive index less than 1.8 and ABBE number less than 70

Definitions

  • the invention relates to an optical flint glass, which has relatively low refractive indices from nd 1.65 to rid 1.87, high dispersions from vd 32 to vd 21 and varying relative partial dispersions.
  • Such glasses are frequently referred to as low flints. They usually contain large quantities of titanium dioxide, which in known manner contributes to a particularly high degree to increasing the dispersion with relatively low refractive indices.
  • silicate glasses with a low flint character are based on'the ternary systems SiO Na O TiO and SiO K TiO The higher their content of TiO the more their optical values differ from those of the conventional flint glasses based on lead silicate.
  • the glasses according to the invention can contain additions of up to altogether 6% by weight of W0 AS203 and Bi O3.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
US272628A 1971-07-28 1972-07-17 Optical flint glass with relatively low refractive indices and high dispersion Expired - Lifetime US3870531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712137748 DE2137748C (de) 1971-07-28 Titandioxidhaltiges, optisches Flintglas mit relativ niedrigen Brech werten von n tief d = 1,65 bis n tief d = 1,87 und hoher Dispersion von ny tief d = 32bisnytiefd = 21

Publications (1)

Publication Number Publication Date
US3870531A true US3870531A (en) 1975-03-11

Family

ID=5815084

Family Applications (1)

Application Number Title Priority Date Filing Date
US272628A Expired - Lifetime US3870531A (en) 1971-07-28 1972-07-17 Optical flint glass with relatively low refractive indices and high dispersion

Country Status (4)

Country Link
US (1) US3870531A (enrdf_load_stackoverflow)
JP (1) JPS4834913A (enrdf_load_stackoverflow)
FR (1) FR2161890B1 (enrdf_load_stackoverflow)
GB (1) GB1347830A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149895A (en) * 1977-07-01 1979-04-17 Corning Glass Works Glass with high refractive index and low density
US4734389A (en) * 1985-02-11 1988-03-29 Schott Glaswerke Highly refractive optical glass with refractive indices >1.83 and Abbe numbers <25, and with very good chemical stability
US4996173A (en) * 1988-02-29 1991-02-26 Hoya Corporation Optical glass
US5952256A (en) * 1997-03-25 1999-09-14 Kabushiki Kaisha Ohara Optical glass having a negative anomalous dispersion
US20030191008A1 (en) * 2002-04-02 2003-10-09 Susumu Uehara Optical glass
US20040220040A1 (en) * 2002-04-02 2004-11-04 Susumu Uehara Optical glass
US20090197755A1 (en) * 2008-01-31 2009-08-06 Ohara Inc. Optical glass

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7528083B2 (en) 2003-06-10 2009-05-05 Kabushiki Kaish Ohara Optical glass
CZ2009373A3 (cs) * 2009-06-10 2010-10-13 Preciosa, A. S. Vysoceolovnaté sklo
JP6675772B2 (ja) * 2014-10-29 2020-04-01 株式会社オハラ 光学ガラス、プリフォーム及び光学素子
CN106630594B (zh) 2016-09-05 2019-12-03 成都光明光电股份有限公司 光学玻璃和光学元件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446638A (en) * 1964-02-13 1969-05-27 Leitz Ernst Gmbh Optical flint glasses
US3460954A (en) * 1964-05-21 1969-08-12 Bendix Corp Bao-nb2o5-sio2 glass compositions for use in fiber-optics
US3536504A (en) * 1965-09-04 1970-10-27 Jenaer Glaswerk Schott & Gen Optical glasses
US3589918A (en) * 1967-11-14 1971-06-29 Jenaer Glaswerk Schott & Gen Optical glass and process for its manufacture

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1502602A (fr) * 1961-06-20 1967-11-24 Jenaer Glas Schott Gen Veb Verre d'optique de réfringence relativement faible et à grand pouvoir dispersif
FR1415326A (fr) * 1964-12-01 1965-10-22 Leitz Ernst Gmbh Flint-glass à usages optiques
FR2056248A5 (enrdf_load_stackoverflow) * 1969-08-14 1971-05-14 Leitz Ernst Gmbh

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446638A (en) * 1964-02-13 1969-05-27 Leitz Ernst Gmbh Optical flint glasses
US3460954A (en) * 1964-05-21 1969-08-12 Bendix Corp Bao-nb2o5-sio2 glass compositions for use in fiber-optics
US3536504A (en) * 1965-09-04 1970-10-27 Jenaer Glaswerk Schott & Gen Optical glasses
US3589918A (en) * 1967-11-14 1971-06-29 Jenaer Glaswerk Schott & Gen Optical glass and process for its manufacture

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149895A (en) * 1977-07-01 1979-04-17 Corning Glass Works Glass with high refractive index and low density
US4734389A (en) * 1985-02-11 1988-03-29 Schott Glaswerke Highly refractive optical glass with refractive indices >1.83 and Abbe numbers <25, and with very good chemical stability
US4996173A (en) * 1988-02-29 1991-02-26 Hoya Corporation Optical glass
US5952256A (en) * 1997-03-25 1999-09-14 Kabushiki Kaisha Ohara Optical glass having a negative anomalous dispersion
US20030191008A1 (en) * 2002-04-02 2003-10-09 Susumu Uehara Optical glass
US20040220040A1 (en) * 2002-04-02 2004-11-04 Susumu Uehara Optical glass
US6828265B2 (en) * 2002-04-02 2004-12-07 Kabushiki Kaisha Ohara Optical glass
US7320949B2 (en) * 2002-04-02 2008-01-22 Kabushiki Kaisha Ohara Optical glass
US20090197755A1 (en) * 2008-01-31 2009-08-06 Ohara Inc. Optical glass
US8030233B2 (en) * 2008-01-31 2011-10-04 Ohara Inc. Optical glass
US8664133B2 (en) 2008-01-31 2014-03-04 Ohara Inc. Optical glass

Also Published As

Publication number Publication date
DE2137748B2 (de) 1972-11-23
DE2137748A1 (enrdf_load_stackoverflow) 1972-11-23
FR2161890A1 (enrdf_load_stackoverflow) 1973-07-13
FR2161890B1 (enrdf_load_stackoverflow) 1976-03-26
JPS4834913A (enrdf_load_stackoverflow) 1973-05-23
GB1347830A (en) 1974-02-27

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